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-rw-r--r--vendor/rayon/src/iter/positions.rs137
1 files changed, 0 insertions, 137 deletions
diff --git a/vendor/rayon/src/iter/positions.rs b/vendor/rayon/src/iter/positions.rs
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index f584bb2..0000000
--- a/vendor/rayon/src/iter/positions.rs
+++ /dev/null
@@ -1,137 +0,0 @@
-use super::plumbing::*;
-use super::*;
-
-use std::fmt::{self, Debug};
-
-/// `Positions` takes a predicate `predicate` and filters out elements that match,
-/// yielding their indices.
-///
-/// This struct is created by the [`positions()`] method on [`IndexedParallelIterator`]
-///
-/// [`positions()`]: trait.IndexedParallelIterator.html#method.positions
-/// [`IndexedParallelIterator`]: trait.IndexedParallelIterator.html
-#[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
-#[derive(Clone)]
-pub struct Positions<I: IndexedParallelIterator, P> {
- base: I,
- predicate: P,
-}
-
-impl<I: IndexedParallelIterator + Debug, P> Debug for Positions<I, P> {
- fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
- f.debug_struct("Positions")
- .field("base", &self.base)
- .finish()
- }
-}
-
-impl<I, P> Positions<I, P>
-where
- I: IndexedParallelIterator,
-{
- /// Create a new `Positions` iterator.
- pub(super) fn new(base: I, predicate: P) -> Self {
- Positions { base, predicate }
- }
-}
-
-impl<I, P> ParallelIterator for Positions<I, P>
-where
- I: IndexedParallelIterator,
- P: Fn(I::Item) -> bool + Sync + Send,
-{
- type Item = usize;
-
- fn drive_unindexed<C>(self, consumer: C) -> C::Result
- where
- C: UnindexedConsumer<Self::Item>,
- {
- let consumer1 = PositionsConsumer::new(consumer, &self.predicate, 0);
- self.base.drive(consumer1)
- }
-}
-
-/// ////////////////////////////////////////////////////////////////////////
-/// Consumer implementation
-
-struct PositionsConsumer<'p, C, P> {
- base: C,
- predicate: &'p P,
- offset: usize,
-}
-
-impl<'p, C, P> PositionsConsumer<'p, C, P> {
- fn new(base: C, predicate: &'p P, offset: usize) -> Self {
- PositionsConsumer {
- base,
- predicate,
- offset,
- }
- }
-}
-
-impl<'p, T, C, P> Consumer<T> for PositionsConsumer<'p, C, P>
-where
- C: Consumer<usize>,
- P: Fn(T) -> bool + Sync,
-{
- type Folder = PositionsFolder<'p, C::Folder, P>;
- type Reducer = C::Reducer;
- type Result = C::Result;
-
- fn split_at(self, index: usize) -> (Self, Self, C::Reducer) {
- let (left, right, reducer) = self.base.split_at(index);
- (
- PositionsConsumer::new(left, self.predicate, self.offset),
- PositionsConsumer::new(right, self.predicate, self.offset + index),
- reducer,
- )
- }
-
- fn into_folder(self) -> Self::Folder {
- PositionsFolder {
- base: self.base.into_folder(),
- predicate: self.predicate,
- offset: self.offset,
- }
- }
-
- fn full(&self) -> bool {
- self.base.full()
- }
-}
-
-struct PositionsFolder<'p, F, P> {
- base: F,
- predicate: &'p P,
- offset: usize,
-}
-
-impl<F, P, T> Folder<T> for PositionsFolder<'_, F, P>
-where
- F: Folder<usize>,
- P: Fn(T) -> bool,
-{
- type Result = F::Result;
-
- fn consume(mut self, item: T) -> Self {
- let index = self.offset;
- self.offset += 1;
- if (self.predicate)(item) {
- self.base = self.base.consume(index);
- }
- self
- }
-
- // This cannot easily specialize `consume_iter` to be better than
- // the default, because that requires checking `self.base.full()`
- // during a call to `self.base.consume_iter()`. (#632)
-
- fn complete(self) -> Self::Result {
- self.base.complete()
- }
-
- fn full(&self) -> bool {
- self.base.full()
- }
-}